Holtek Semiconductor HT81R36
The HT81xxx provides direct key or Matrix key input and 2 programmable FLAG outputs. With 2.4V~5.0V power supply, a complete synthesized voice playback system can be easily built with very few external components. The customer¢s voice sources are recorded section by section into an internal mask ROM.| Part No. | HT81R36 |
|---|---|
| Datasheet | HT81R36 Download |
| Manufacturer |  Holtek Semiconductor |
| Description | EasyVoice Speech |
| Buy | Stock & Price |
FEATURES
● Operating voltage: 2.4V~5V● Directly drives an external transistor
● PWM function directly driver speaker
● Low standby current (1mA typ. for VDD=3V)
● Minimal external components
● 240 notes table ROM for key functions
● Programmable silence length and end-pulse width (minimal end-pulse width is 1.3ms at 8kHz sampling rate)
● Controllable volume
● FLAG1 options - End-pulse output - 3Hz, 3HzB flash - 6Hz, 6HzB flash - Busy output - OFF
● FLAG2 options - 3Hz flash - 6Hz flash - Busy output - OFF
● 6 keys (Directed)
● 8 keys (Matrix key)
● Key options - Sequential/Directed - Repeat (KEY2~KEY6) - STOP key (KEY6) - Key debounce time: 1.2ms, 22ms, 45ms (based on a 8kHz sampling rate) - One shot/Normal - Pull-high resistance: 0, 50kW, 100kW, 200kW
● Section options - Retriggerable - Non-retriggerable
● Package types: HT81006/009/012/018: 16-pin DIP package HT81R09/R18/R36: 16-pin SOP package
APPLICATIONS
● Leisure products● Alarm clocks
● Alert and warning system
● Sound effect generators
GENERAL DESCRIPTION
The EasyVoiceTM is a single-chip voice synthesizer LSI .
